Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6663e64b57705c1…

MALICIOUS

PDF

275.9 KB Created: 2021-03-12 03:14:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9d2eb6879b51ceb5005da74d354ee019 SHA-1: 99ff1f7e2281868aad740ea42b6daea7b3ba507e SHA-256: b6663e64b57705c1aac04e3186bec7b0b5edcc59782fc20ff647917e072390c6
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9718

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://jumiwimov.ru/award?keyword=shell+alvania+g3+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4393900/normal_5fcf0568d01f3.pdfIn PDF document text
    • http://vexoxem.scienceontheweb.net/organometallic_catalysis.pdfIn PDF document text
    • http://sakivometo.medianewsonline.com/how_to_code_python_for_absolute_beginners.pdfIn PDF document text
    • http://easycreditscore.info/introduction_to_leadership_peter_g._northouse6zawk.pdfIn PDF document text
    • https://watagejikifawup.weebly.com/uploads/1/3/4/5/134589749/netedebamepa_xomefu_nobifabupezile_xijokakawe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482219/normal_5fdca3bc0b3ce.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454973/normal_5fefeefe4da69.pdfIn PDF document text
    • http://kenugizi.getenjoyment.net/learning_matlab_for_engineers.pdfIn PDF document text
    • http://persequen.com/author_s_purpose_worksheet_3rd_grade_free9zwmh.pdfIn PDF document text
    • http://tagoturuluro.medianewsonline.com/72157251428.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452389/normal_5fd6409659d8a.pdfIn PDF document text
    • http://tokiridevifo.medianewsonline.com/midebufinugawifef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501029/normal_6020a33993566.pdfIn PDF document text
    • https://zumikifekov.weebly.com/uploads/1/3/0/8/130813997/fonixit.pdfIn PDF document text
    • http://shopyou.online/15624193602b6wlv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/0a51c13f-31df-4f8c-941d-0e0164ba0117/reflexive_verbs_daily_routine_spanish_worksheet_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5eac7e0a-631e-4fb4-a61f-76035c39acaf/netgear_readynas_nv_rnd4000_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2afb39c-50cc-46ed-be81-3f9b572d548d/is_there_gonna_be_a_wu_tang_season_2.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003e9b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E9B2 4952 bytes
SHA-256: 719f83908f84d092ca5254b777c3da1eb161088330861cd3bf6184099fef6f56
font_01_sfnt_off0003fa81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FA81 18480 bytes
SHA-256: 4b65a024ee38627c87f925f0ee7c63151bb37508472ff0ef8e2b4bd17709dcb7
font_02_sfnt_off00043233.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43233 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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